642416707405 has 8 divisors (see below), whose sum is σ = 840981871584. Its totient is φ = 467212150800.

The previous prime is 642416707397. The next prime is 642416707433. The reversal of 642416707405 is 504707614246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 642416707405 - 2³ = 642416707397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5840151831 + ... + 5840151940.

It is an arithmetic number, because the mean of its divisors is an integer number (105122733948).

Almost surely, 2^642416707405 is an apocalyptic number.

It is an amenable number.

642416707405 is a deficient number, since it is larger than the sum of its proper divisors (198565164179).

642416707405 is a wasteful number, since it uses less digits than its factorization.

642416707405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11680303787.

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 642416707405 in words is "six hundred forty-two billion, four hundred sixteen million, seven hundred seven thousand, four hundred five".